​Plant nodulation genes encode proteins with receptor-like features. Following are the list of some nodulation proteins (Column X) and their possible domain characteristics (Column Y):​

​Which of the following is the correct match?​

Correct option is B

Explanation-

1. Entry receptor (e.g., NFR1/NFR5 in legumes)
         These are LysM-type receptor-like kinases. Some have a kinase domain, others lack it. Therefore, Entry receptors are typically:
         A → ii  Extracellular LysM domains and the cytoplasmic kinase domain/s
2. Signalling receptor
         If it's a non-kinase receptor with LysM domains only

B → iii  Extracellular LysM domains but lacks the kinase features in the cytoplasmic portion

3. Symbiosis receptor kinase
         Generally contains a leucine-rich repeat (LRR) domain and an active kinase domain.
         Thus, C → i  Extracellular leucine-rich repeat domains in a large N-terminal segment and the  cytoplasmic portion having kinase domain

Final Answer: Option b - A - ii, B - iii, C - i